Soil factors affecting phosphorus adsorption in soils of the Cerrado, Brazil

Alovisi, Alessandra Mayumi Tokura; Cassol, Cleidimar João; Nascimento, Jaqueline Silva; Soares, Natanael Borges; Silva, Izaias Rodrigues da; Silva, Robervaldo Soares da; Silva, João Augusto Machado da

doi:10.1016/j.geodrs.2020.e00298

Cited by 31 publications

(21 citation statements)

References 19 publications

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“…In contrast, Alovisi et al. (2020) concluded that soils with higher clay contents fix more P in their matrix. Furthermore, in some regions, high P content in soils can occur naturally.…”

Section: Discussionmentioning

confidence: 92%

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Combined impact of land cover, precipitation, and catchment area on discharge and phosphorus in the Mississippi basin's subcatchments

2021

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Phosphorus (P) supplies (concentrations and fluxes) are essential drivers for biological activities in rivers and should be controlled to prevent eutrophication that usually results from urbanization and agricultural expansion. In this study, data from 26 subcatchments in the Mississippi basin were compiled from 2013 to 2017 to identify how catchment area, precipitation, and land cover affect discharge and total P (TP) and how TP yield diverges from a generalized local response mode. Results revealed that area‐weighted discharge (Qarea) is controlled by precipitation and land cover (i.e., increases with precipitation and with both urban and forestland covers and decreases with both shrub/scrub and pasture/grassland covers). Total P concentration increases with agricultural land cover and decreases with both forest and water/wetland covers. Total P yield (Qarea × concentration) is governed mainly by Qarea because the latter changes by a higher order of magnitude compared with concentration in the current study. Hence, TP yield follows the same trends that Qarea exhibits with precipitation and land cover. In all catchments, TP yield varied significantly (p < .05) and positively with instantaneous discharge. However, the rate of yield variations with discharge exhibited a significant (p < .0001) strong negative (r2 = −.74) correlation with catchment area. This study provided a robust model that can predict the TP concentration and yield across different catchment scales in the Mississippi basin by means of discharge readings.

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“…In contrast, Alovisi et al. (2020) concluded that soils with higher clay contents fix more P in their matrix. Furthermore, in some regions, high P content in soils can occur naturally.…”

Section: Discussionmentioning

confidence: 92%

“…Similarly, Mutema et al (2015) found that sand has higher P loss compared with loam and clay. In contrast, Alovisi et al (2020) concluded that soils with higher clay contents fix more P in their matrix. Furthermore, in some regions, high P content in soils can occur naturally.…”

Section: Tp Yield Ratementioning

confidence: 94%

Combined impact of land cover, precipitation, and catchment area on discharge and phosphorus in the Mississippi basin's subcatchments

2021

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“…In Oxisols, such as those that dominate Cerrado soils, pH water and Al range from 4.0 to 5.3 and 1 to 9.3 mmol c kg -1 , respectively [ 15 , 40 – 42 ]. Many Cerrado plants survive in soils with high Al content (13.73 mmol c Al dm -3 ) [ 43 ], however, their growth can be limited by the low availability of essential nutrient cations such as ammonium, calcium, magnesium, and potassium [ 44 ].…”

Section: Discussionmentioning

confidence: 99%

Biomass residues improve soil chemical and biological properties reestablishing native species in an exposed subsoil in Brazilian Cerrado

et al. 2022

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Revegetation of exposed sub-soil, while a desirable strategy in the recovery processes, often fails due to extreme soil chemical properties, such as low organic matter and pH levels inhospitable to biological activities such as nutrients cycling and plant establishment. This is the case for approximately 800 ha of the Cerrado biome in Brazil, where erecting the embankment of a hydroelectric dam in the 1960’s stripped vegetation, soil, and subsoil layers thereby distorting the soil properties. This work evaluates the effectiveness of restoration management (RM) treatments, to restore the soil quality, including biological activity and chemical attributes. In a factorial scheme, RM treatments include the addition of organic residue from aquatic macrophytes (AM) at 3 rates (0, 16 and 32 t ha-1), combined with ash from sugar cane bagasse of agroindustrial origin (BA) at 4 rates (0, 15, 30 and 45 t ha-1). RM samples contrasted samples collected from undisturbed Cerrado (CER) as well as a degraded area without intervention (DAWI). The mechanized RM plots received amendments and reforestation of 10 Cerrado native tree species. After 5 years, vegetation covered up to 60% of the surface in RM treatments receiving AM32 + BA45. AM and BA residues promoted height increases in the introduced plants. All RM treatments promoted lower levels of Al3+ than DAWI and CER. The combination of AM32 over the rates of incorporated ash increased soil pH and K values similarly to CER. Microbial-related variables, such as microbial biomass-C was the largest in CER, followed by the RM treatments, and the lowest in DAWI. The microbial quotient was no different between CER and RM treatments. The addition of residues such as AM and BA increased the vegetation covered, improved chemical and microbiological indicators. Thus, the residues used aided the recovery process of intensely degraded soils in the Cerrado area.

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“…Gérard (2016) [40] reported that P attachment to clay soil is due to the large specific surface area of clay particles. Additionally, abundant Fe and Al oxides in the soil increase P attachment to clay soil, thereby further reducing P availability [41]. Morales et al (2013) [42] reported that after adding biochar to degraded tropical soil, the soluble P released by the biochar was first absorbed by Fe and Al oxides in the soil.…”

Section: Effect Of Pbcms On Available P In Soilmentioning

confidence: 99%

Decomposition and Nutrient Releasing of Biochar Compound Materials in Soil with Different Textures

2021

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Combining biochar with chemical fertilizers or compost not only improves the shortcomings of biochar’s lack of fertility, but also extends the benefits of the compost. The application of biochar composite materials will be a future agricultural management strategy. In this study bagasse compost was mixed with wood biochar (w/w) at rates of 0% (B), 25% (BC), 50% (BC3), and 100% (no biochar, C) to produce four types of particle biochar compound materials (pBCM). These materials were applied to two types of soil (sandy soil and clayey soil) for a 180-day incubation to determine the decomposition rate and the nutrient release efficiency of the pBCMs. The results showed that C treatment had the highest decomposition rate in both types of soil. Overall, the materials decomposed faster in the sandy soil than in the clayey soil. Plants were grown over two 30-day crop periods. The plant yields of treatments C and BC3 were the highest in the first period and respectively decreased and increased in the second period. The experiment results revealed that in the biochar–compost compounds, compost increased the use efficiency of nitrogen and phosphorus in the soil, and biochar increased the nutrient use efficiency in the second period. These compound materials had greater capacity for long-term supply of nutrients in soil than did single-component ones.

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Soil factors affecting phosphorus adsorption in soils of the Cerrado, Brazil

Cited by 31 publications

References 19 publications

Combined impact of land cover, precipitation, and catchment area on discharge and phosphorus in the Mississippi basin's subcatchments

Combined impact of land cover, precipitation, and catchment area on discharge and phosphorus in the Mississippi basin's subcatchments

Biomass residues improve soil chemical and biological properties reestablishing native species in an exposed subsoil in Brazilian Cerrado

Decomposition and Nutrient Releasing of Biochar Compound Materials in Soil with Different Textures

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